The Key That Swallowed Joey Pigza — Jack Gantos

The fifth and final book in the groundbreaking Joey Pigza series brings the beloved chronicle of this wired, wacky, and wonderful boy to a crescendo of chaos and craziness, as everything goes topsy-turvy for Joey just as he starts to get his feet on the ground. With his dad MIA in the wake of appearance-altering plastic surgery, Joey must give up school to look after his new baby brother and fill in for his mom, who hospitalizes herself to deal with a bad case of postpartum blues. As his challenges mount, Joey discovers a key that could unlock the secrets to his father's whereabouts, a mystery that must be solved before Joey can even hope that his broken family might somehow come back together―if only it doesn't pull him apart first.